HN user

benfarahmand

17 karma

product manager, designer, engineer, entrepreneur

Working on https://www.tuvalabs.com and http://www.thefaza.com

Posts3
Comments16
View on HN

I made a music visualizer.

Background: Over the past several years my friends and I would get together for music nights where we share albums and songs we've been listening to. We also have a projector in case we want to showcase music videos.

Eventually, I made us a music visualizer that analyzes real-time microphone input and draws various geometries on to the screen, giving us something to engage our eyes. I built it using the Processing library for Java.

Here's a few demos of it:

- https://www.youtube.com/watch?v=UcNIBagttRU

- https://www.youtube.com/watch?v=4sJ192bQt1k

I had to track my physical inputs and outputs for a week for medical reasons and I used a google form. I placed a shortcut on my phone and it immediately opened the form for simple and easy tracking. Everything was then saved to a spreadsheet, which I could analyze once my week was done.

I can't think of physical processes that could go from macro -> micro. The examples I can think of stem from Yuval Harari's human fictions affecting the world. For example, a nation state or a corporation or a story could set the stage for the macro affecting the micro. If we look at a story, it communicates an idea that changes the behaviors of humans, which in turn causes those humans to interact with the micro and the macro.

As I'm writing this out and thinking about it, where would fictional objects fit on the micro <--> macro axis?

The linked paper summary says "...we describe a bio-photovoltaic energy harvester system using photosynthetic microorganisms on an aluminium anode..."

How do they prevent the aluminum from oxidizing? Oxidized aluminum is an insulator, which should be a problem for a long lived battery?

I don't have access to the whole paper since it's behind a paywall.

To have more time to experience more of the world, learn new skills, spend time with friends and family, start (and finish!) more side projects, etc.

I'm not entirely sure how 'more time' would be accomplished. It could be living longer, not requiring sleep, not needing a salary to pay for basic needs (which would free up existing time).

I may or may not be building a shed in my spare time for the past 5 years, but I'm positive I'm not making a cake. With prototyping and user feedback it feels like I'm not building a shed, but the effort many times feels like I'm building a shed. That said, the shed definition could be clearer because there are parts of my passion project that makes it feel like I'm building a shed (i.e. marketing).

If the goal is developing grantee self-efficacy, the funding should require pairing with a mentor. Finding a mentor that is willing to guide a grantee to bring an idea to fruition is also validation of that individual's ability to accomplish the task.

Reading your comment made me wonder why we have even numbers of limbs for different body plans. I realized it's due to bilateral symmetry for most organisms must some how be advantageous to asymmetric body plans, but I'm unsure how symmetry is advantageous. What are the evolutionary pressures selecting against asymmetric body plans?

This is amazing! When taking long exposures like this over a significant amount of time, does anyone know how astronomers account for stellar parallax and/or the sun's orbit in the milky way? Are these factors too small to affect long exposure photos? And if they are too small to affect a long exposure photo, at what point does it become an issue?

Maker of Fonzie here. Let me know if you have any questions.

Bill of materials:

- Arduino

- Raspberry Pi

- OpenCV with Python

- Webcam

- 6 servos

- 6 gearboxes

- 2 speakers

- Aluminum frame

- Chicken Wire

- Quilt Batting

- 3s12p Lithium Ion Battery

- Lots of wire, solder, and thread

Matt, I'm so sorry to read this news. I hope you spend this difficult time with the people in your life that are sensitive to you and your needs.